keydown - Newbie_小白

keydown

<!DOCTYPE HTML>
<html>
<head>
    <meta charset="utf-8">
    <title>无标题文档</title>
    <script>
        window.onload = function () {
            var oTxt1 = document.getElementById('txt1');
            var oTxt2 = document.getElementById('txt2');

            oTxt1.onkeydown = function (ev) {
                var oEvent = ev || event;

                if (oEvent.keyCode == 13 && oEvent.ctrlKey)//回车+Ctrl键
                {
                    oTxt2.value += oTxt1.value + '\n';
                    oTxt1.value = '';
                }
            };
        };
    </script>
</head>

<body>
<input id="txt1" type="text"/><br>
<textarea id="txt2" rows="10" cols="40"></textarea>
</body>
</html>

运行结果（输入文字后按Ctrl+enter则发布出去）：

posted on 2016-03-22 10:01 Newbie_小白阅读(434) 评论(0) 编辑收藏举报